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FRP Double-Walled Underground Petroleum Storage Tanks

Double-walled FRP tanks have an inner tank and a separate FRP outer shell, creating an interstitial space. This dual containment allows continuous leak monitoring of the inner tank for maximum environmental safety. They combine FRP’s corrosion resistance with an extra safety barrier.

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Key Features

  • Double Containment: Inner (primary) FRP tank and outer FRP shell form a leak-detection sump.
  • Interstitial Monitoring: Ports allow sensors or manual checks to detect leaks.
  • Certified Design: Meets stringent requirements for underground petroleum tanks.

Benefits

  • Environmental Protection: Early leak detection prevents soil/groundwater contamination.
  • Redundancy: Two layers ensure stored fuel is always contained.

Applications

  • Fuel Stations & Terminals: Where regulatory compliance mandates double-wall storage.
  • Fuel Blending Facilities: Secure underground fuel storage.

Technical Specifications

  • Volume: Typically the same range as single-wall tanks (customizable).
  • Leak Monitoring: Equipped with interstitial gauge or ready for electronic sensor integration.
  • Material: Inner and outer FRP laminate, usually made with vinyl ester resin.

Unique Selling Points

  • Certified to EPA/UL/FM: Meets North American double-wall fuel tank standards.
  • Turnkey Testing: Supplied with interstitial monitoring and leak alarms.